Web Crypto API using Microsoft Edge (38.14393.0.0) - Microsoft Community

i using web crypto api (https://www.w3.org/tr/webcryptoapi/) on chrome (since first web crypto support), firefox (since first web crypto support) , on safari tp (10.2) support of webcrypto liner pollyfill webcrypto api (https://github.com/peculiarventures/webcrypto-liner). 

want test our code using microsoft edge. encrypting , decrypting sample arraybuffer fails. here code:

    var crypto = window.crypto;
    if (crypto.subtle) {
        var aesgcmkey = null;
        // create new, random iv in production systems!!!
        var tempiv = new uint8array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]);
        // needed edge, if additional data missing decrypting failing
        var tempadditionaldata = new uint8array(0);
        var datatoencrypt = new uint8array([1, 2, 3, 4, 5]);

        // 1.) generate key
        var generatekeypromise = crypto.subtle.generatekey(
            {name: "aes-gcm", length: 256}, true, ["encrypt", "decrypt"]
        );
        generatekeypromise.then(function (tempkey) {
            aesgcmkey = tempkey;
            // 2.) start encryption key
            var encrypteddatapromise = crypto.subtle.encrypt(
                {name: "aes-gcm", iv: tempiv, additionaldata: tempadditionaldata, taglength: 128},
                aesgcmkey,
                datatoencrypt
            );
            encrypteddatapromise.then(function (encrypteddata) {
                // 3.) decrypt using same key
                var decrypteddatapromise = crypto.subtle.decrypt(
                    {name: "aes-gcm", iv: tempiv, additionaldata: tempadditionaldata, taglength: 128},
                    aesgcmkey,
                    encrypteddata
                );
                decrypteddatapromise.then(function (decrypteddata) {
                    // 4.) compare decrypted array buffer , inital data
                    console.log('data decrypted!');
                    console.log(decrypteddata);
                });
                decrypteddatapromise.catch(function (error) {
                    console.log('decrypting sample data failed');
                    console.log(error);
                });
            });
            // if 2.) failing
            encrypteddatapromise.catch(function (error) {
                console.log('encrypting sample data failed');
                console.log(error);
            });
        });
        // if 1.) failing
        generatekeypromise.catch(function (error) {
            console.log('creating aec gcm key failed');
            console.log(error);
        });
    }

this code failing in decrypting phase (step 3. in code) on edge, while working fine on chrome, firefox , safari. wired part decrypteddatapromise resolved exception returned data doesnt exception @ all:

    [object object] {additionaldata: uint8array {...}, iv: uint8array {...}, name: "aes-gcm", taglength: 128}

have clue why fails on microsoft edge?

***post moved moderator appropriate forum category.***

you find consumer-specific support edge browser beginning own, new thread in forum => http://answers.microsoft.com/en-us/windows/forum/apps_windows_10-msedge

otherwise, should posting in win10 pro-specific forums: https://social.technet.microsoft.com/forums/en-us/home?category=windows10itpro

Microsoft Edge / All other issues / Windows 10